Loom for weaving tufted file fabrics.



J. P. HUMPHRIE S. LOOM FOR WEAVING TUFTED PILE FABRIGS.

. APPLICATION FILED JAN. 11, 1909. 940,53 1. Patented Nov. 16, 1909.

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J. P. HUMPHRIES.

LOOM FOR WEAVING TUPTED FILE FABRICS.

APPLICATION FILED JAN. 11, 1909.

940,531., Patented Nov. 16. 1909.

4 SHEETS-SHEET 2.

J. P. HUMPHRIES. LOOM FOR WEAVING TUFTED PILE FABRICS.

APPLICATION FILED JAN. 11, 1909. 940,53 1 Patented Nov. 16, 1909.

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J. P. HUMPHRIES. LOOM FOB. WEAVING TUPTED PILE FABRICS.

APPLICATION FILED JAN.11, 1909.-

Patented Nov. 16, 1909.

4 SHEETS-SHEET 4.

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LOOIVI FOR WEAVING TUFTED FILE FABRTCS.

Specification of Letters Patent.

Patented Nov. 16, 199.

Application filed. January 11, 1909. Serial No. 471,736.

' To all whom "it may concern:

Be it known that 1, JAMES PERCIVAL HUM- ri-lnins, a subject of the Kingof Great Britain, residing in Mill street, Kidderminster,Worcestershire, England, have invented certain new and usefulImprovements in or Belating to Looms for l/Veaving Tufted Pile Fabrics,of which the following is a specification.

My invention relates to looms for weaving tufted pile fabrics, such forexample as Axminster carpets, in greater widths than is usual andconsists of the construction and arrangement hereinafter described ofcertain of the parts of Axminster carpet looms, the said constructionand arrangement of parts having for their principal objects to impartthe requisite rigidity to the said parts of the loom and to preventtlexure or sagging of the same.

According to my invention I employ spools or bobbins for the tuft yarnshaving a combined length somewhat greater than the width of the carpetto be made and mount the said spools or bobbins in a nearlysemi-cylindrical shield-like or troughed case or cover hereinaftercalled the spool carrier, which carrier covers preferably somewhat morethan one half of the bobbins arranged therein. Each spool carrier ispreferably made of a series of wooden strips glued together so as toform a nearly semi-cylindrical trough which may be covered bothinternally and externally with canvas, but I wish it to be understoodthat I do not limit myself to this method of making the spool carriersas they may be made of bent wood, papier macho or the like; or of metal.From the lower edge of the semi-cylindrical trough of the spool carrierdepends the bar to which the quills or tubes are fixed through which theends of the tuft yarns are threaded.

In the operation of a loom provided with my improvements, the spoolcarrier is not detached from the operating chains as is usual wheninserting the ends of the tuft yarns into the warps, the carriers of myinvention being incapable of detachment from the carrier chains duringthe working of the loom. I obtain the necessary length of tuft yarns toform the pile and insert the same in the fabric in the mannerhereinafter particularly described.

Figure 1 of the accompanying drawings represents in side elevation somuch of an Axminster carpet loom, to which my improvements are appliedas is necessary to the understanding of my invention. Fig. 2 isavertical section of a portion of the 100111 looking from the oppositeside to that represented in Fig. 1. Fig. 3 is a fragmental sideelevational view illustrating the mechanism for rocking and swinging thegripper shaft. Figs. l to 17 both inclusive represent detail views ofthe parts of the loom hereinafter particularly described drawn to alarger scale than Fig. 1.

The same letters of reference indicate the same parts in the severalfigures of the drawings.

a is the frame of the loom which frame has a width somewhat greater thanthe width of the carpet to be made in the loom.

6, Z) are portions of the chains by which the intermittent travelingmotion is given to the spool carriers 0, two chains only being employedas in an ordinary Arminster loom weaving the usual width of fabric.

As will be seen by reference to Figs. 1, at, 5, 6, 7, 8 and 9, the spoolcarriers 0 are trough shaped the trough having a length slightly greaterthan. the combined length of the spools (Z to be accommodated therein,there being preferably four spools to a carrier. I wish it to beunderstood however that the carrier may be of a length proper to carryfewer or more than four spools. The ends of the carrier 0 may beprovided with closing disks 0 as will be understood by reference toFigs. 4 and 5, Fig. at representing in front elevation portions of thecarrier 0 and spools (Z therein and Fig. 5 representing the same in endelevation; 011 the outer faces of the end closing disks 0 are lugs cwith convex presented edges which receive and fit the concave edges ofthe links of the endless carrier chains 7) as will be understood byreference to Fig. 5, where the links of the chains 1) to which thecarrier 0 is attached are indicated in dotted lines. By the attachmentof the carriers 0 to the chains Z) in the manner hereinbefore describedand illustrated the possibility of any angular or oscillating motion ofthe spool carrier 0 with respect to the links of the chains 6 isprevented.

The nearly send-cylindrical trough of the spool carrier 0 isstrengthened at equi-distant parts by ring-like diaphragms or inwardlyprojecting ribs or flanges 0 best seen in Figs. 4., 6 and 7 Fig. 6 beinga cross-sets tion on the dotted line 6 6 Fig. 41, and Fig. 7 being ahorizontal section on the dotted line 7 7 Fig. 6. Each strengtheningflange c has fixed thereto a pair of spring-like arms 0 of thin sheetmetal, holes in which constitute bearings for the axes or spindles ofthe spools (Z as will be best understood. by reference to Figs. (3 and7.

Instead of making the end disks 0 to completely clor-1e the ends of thetrough 0 they may be shaped as is represented in Figs. 8 and 9, one ofthe spring arms a being combined therewith to support the axis orspindle of the outer spool at its outer end.

The quills or tubes 7' through which the ends of the tuft yarns on thespools (Z are threaded as is usual, are fixed on the bar 0* of the:arrier c. The said quills or tubes f may be of the ordinary kind, butl" prefer to strengthen them by forming ea h quill or tube with aprojecting fiap or car piece j as is illustrated in Figs. 10 and 11,Fig. 10 representing in rear elevation and Fig. 11 in cross section onthe dotted line 11 11 Fig. 10, a few of the improved quills or tubes.Each quill or tube 7" is soldered to the projecting flap 7" of theadjacent quill or tube and thus the series of quills are rigidlyconnected near their lower ends tlu-oughout the length of the series.

As the spool carriers 0 are not detachable from the chains 6 the knivesg for cutting the tuft yarns must be arranged to cut the said yarns alittle below the ends of the quills as is illustrated in Fig. 1. Theknives are fixed to lugs 5 on the tubular knife carriers 9 For thepurpose of obtaining the necessary lengths of the tuft yarns andinserting them into the open shed, I employ a pair of toothed grippers72, it best seen in Fig. 12 which is a cross section through thegrippers 71., it and the parts by which they are carried. he gripper his fixed to lugs, or a bar, 2' on the tubular shaft and the gripper 70is fixed to lugs i secured to the free ends of a series of levers Zwhich cross and work in equi-distant slots 7: in the tubular shaft isthe levers being pivoted to lugs m secured to the tubular shaft k. Thelevers Z are moved in the direction proper for closing the grippers h,if on the ends of the tuft yarns depending from the quills or tubes onthe bar a" of the spool carrier by an axial rod 0') and series of frames7) connecting the sections of the rod /2 as will be best understood byreference to Figs. 13 and 14, Fig. 13 representing in longitudinalsection a portion of the gripper carrying shaft and Fig. 14: being asection on the dotted line 14 14 Fig. 12. The frames y) embrace thelevers Z as is best seen in F 12 and 1 1 one of the inner edges of eachframe being inclined and supporting the rear edge of the ways inring-like diaphragms r which act as side supports for the levers.

lVhen the grippers h, [L2 are in action, that is to say, are drawing therequisite length of tuft yarns from the spools (Z to form the pile, thespool carrier is temporarily provided with an additional support orsupports of the kind illustrated in Figs. 15, 16 and 17, the saidsupport consisting of a cam shaped head or projection 25 on the pin 25which is brought on to a lip or flange 11 depending from a hangerthrough which. passes the shaft o of the lower chain or sprocket wheelsof the loom. By making the heads or projections t cam shaped they can bereadily adjusted so as to insure them coming into actual contact withthe lips or flanges u.

After the necessary length of tuft yarns has been drawn off the spools(Z the knives g r are operated by mechanism differing in no essentialrespect from the operating mechanism for the knives of an ordinaryAxminster loom. The gripper shaft is then swung bodily downward, and isat the same time given a half rotation, so as to reverse the grippers,which latter then occupy the position indicated in dotted lines inFig. 1. The swinging and rotary movement just referred to is effected bymeans of the mechanism shown in Fig. 3, this mechanism includingprimarily a pair of cams a? and a secured to the cam shaft :0 (driven inany preferred manner from the main drive shaft of the machine), a leverw, and a. link .2. Link .2" is provided with a roller Q02, and link .2with a roller .2 which rollers travel respectively upon cams a: and w.The roller 70 carried by lever 20 is located centrally thereof, and saidlever is pivoted at its rear end to a bracket a? secured to frame a, andat its front end to a vertical link 10'. At its upper end link 10 ispivoted to one of a pair of arms 10 rigidly secured at their rear endsto a horizontal rock shaft 10 journaled in brackets fastened to theupper portion of. said frame. The gripper shaft Z: is loosely carried bythese arms 20 at the forward ends thereof. Link .2" is verticallyarranged and extends between a pair of guide lugs a" secured to a framea, said lugs having their inner faces cenvexed. The upper end of thislink is pivotally connected to the rear end of a lever .2 whose frontend is provided with rack teeth 2 which engage a pinion secured to theadjacent end of the gripper shaft. Intermediate its ends, the rack-leverz is formed with a longitudinal slot 2* through which extends asupporting or pivot pin 2 which is also secured to frame a. The rear endof lever e is normally depressed by the action of a spring a connectedat one end thereto and at the other end to the frame. The cams w and ware so timed that the rotary movement of the gripper shaft and theswinging movement of the arms to occur simultaneously, as alreadystated.

hen the grippers are in their reversed position, their teeth engage thefell of the fabric. They are then slightly raised, so as to leave thetuft yarns depending therefrom projecting through the open shed, theyarn ends being subsequently tucked up by the comb :1 in the ordinarymanner.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is 1. In a loom, the combination, with thecarrier chains; of a series of trough-shaped carriers having their endspermanently con nected to said chains; and a series of spools removablysupported within each carrier.

2. In a loom, the combination of a troughshaped carrier; a series ofpairs of perfo rated spring arms arranged therein; and a series ofspools arranged end to end in said carrier and provided at their endswith axial pins adapted for insertion in the perforations in said arms.

3. In a loom, the combination, with the carrier chains; of atrougl1sl1aped carrier provided at each end with a pair of spaced lugshaving their mutually-adjacent edges engaged with the links of theadjacent chain and conforming to the shape thereof, to preventoscillation of the carrier with respect to said links; and a series ofspools arranged in said carrier.

4. In a loom, the combination, with the carrier chains; of atrough-shaped carrier provided at each end with a pair of spaced lugshaving their mutually-adjacent edges engaged with the links of theadjacent chain and conforming to the shape thereof, to preventoscillation of the carrier with respect to said links; a series of pairsof perforated spring arms arranged therein; and a series of spoolsarranged end to end in said carricr and provided at their ends withaxial pins adapted for insertion in the perforations in said arms.

5. In a loom, the combination, with a spool-carrier and its bar; of aseries of tubes secured to said bar, each tube being provided with astrengthening member extending across and secured to the succeedingtube.

6. In a loom, the combination, with a spool carrier and its bar; of aseries of tubes attached to said bar and provided each with a lateralflap, the flaps being successively overlapped and connected together.

7. In a loom, the combination of a tubular shaft provided with a seriesof slots; a series of levers pivotally connected to said shaft andextending through the slots therein; a fixed gripper connected to saidshaft; a gripper connected to said levers and movable therewith; meansfor normally holding said levers in one position; and a member movablewithin the shaft for shifting said levers out of such position.

8. In a loom, the combination of a tubular shaft; fixed and movablegrippers mounted thereon; a series of levers pivoted to said shaft andconnected to the movable gripper, for operating the same; means fornormally holding said levers in one position; and a member movablewithin said shaft and arranged to engage said levers, for rocking themout of such position.

9. In a loom, the combination of a slotted tubular shaft; fixed andmovable grippers mounted thereon; a lever pivoted to the shaft andextending through the slots therein and connected to the movablegripper, for operating the same; means for normally holding said leverin one position; a member movable within said shaft; and a frame carriedby said member and provided wit-h a cam edge arranged for engagen'lentwith said lever, for shifting the latter out of such position.

10. In a loom, the combination of a slotted tubular shaft; fixed andmovable grippers mounted thereon; a lever pivoted to the shaft andextending through the slots therein, and connected to the movablegripper, for operating the same; a roller carried by said lever; meansfor normally holding said lever in one position; a rod movable withinsaid shaft; and a frame carried by said rod and provided with a cam edgearranged for engagement with said roller, to shift said lever out ofsuch position.

11. In a loom, the combination of a tubular shaft; fixed and movablegrippers mounted thereon; a lever connected at one end to said shaft andat the other end to the movable gripper, for shifting the latter; meansfor yieldingly holding said lever in one position; an endwise movablerod located within said shaft; and a member carried thereby and arrangedfor engagement with said lever, for rocking said lever out of suchposition during the movement of said rod in one direction.

I11 testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JAMES PERCIVAL HUMPHRIES,

VVitnesSes JAMES MORTON, FRED GADSBY.

